Goggle with removable lens cover



Def; 2', 1962 Filed April 21, 1961 F. W. LINDBLOM GOGGLE WITH REMOVABLELENS COVER 2 Sheets-Sheet l INVENTOR. FRANK W. LINDBLOM ATTORNEYS Oct.2, 1962 F. w. LINDBLOM 3,056,140

GOGGLE WITH REMOVABLE LENS COVER Filed April 21, 1961 2 Sheets-Sheet 2IN V EN TOR.

FRANK W LINDBLOM BY ATTORNEYS United States Patent Ofllice 3,656,146Patented Oct. 2, 1962 3 056 140 GOGGLE WITH REMOVABLE LENS COVER FrankW. Lindblom, Warwick, R.I., assignor to Welsh Manufacturing Company, acorporation of Rhode Island Filed Apr. 21, 1961, Ser. No. 104,556 3Claims. (Cl. 214) This invention relates to a goggle of the type usedfor protecting the eyes of a welder.

Goggles of this general type often have removable lens covers which maybe replaced as the same become damaged due to flying sparks of weldingmaterial.

One of the objects of this invention is to provide a lens carrying unitwhich may be removable from the body portion of the goggle.

Another object of the invention is to provide a lens carrying unit whichwill be of a more rigid or stiff material than the body of the gogglewhich may be of a soft flexible material so that it may be readily drawninto snug engagement with the face.

Another object of the invention is to prevent the spreading of the sidesof the opening in the body in which the lens carrying unit is located asthere is strain placed upon the more flexible body portion.

With these and other objects in view, the invention consists of certainnovel features of construction as will be more fully described andparticularly pointed out in the appended claims.

In the accompanying drawings:

FIGURE 1 is a perspective view of the complete goggle except the headstraps are omitted;

FIGURE 2 is an elevational view looking from the back of the goggle;

FIGURE 3 is a section on substantially line 33 of FIGURE 2; and

FIGURE 4 is a section on substantially line 4--4 of FIGURE 3.

In proceeding with this invention, the body portion of the goggle ismolded from some plastic material of a soft and flexible character to besnugly drawn into contact with the face, the material yielding somewhatso as to conform to the shapes of different faces as may be encounteredin its use. The plastic material of the body is of the flexible typesuch as polyethylene, and there is provided a cutout opening into whicha stiffer plastic unit for carrying the lens is positioned. This unit isprovided with a flange which may be assembled with the body by passingthe flange through the opening in the body and assembling a frame toembrace the flange. Some integral locking means between the parts willhold the frame snugly against the marginal edge of the opening and, inorder to prevent the marginal edges from spreading when strain isapplied to the body, pins are provided on the frame to extend into holesin the marginal edge to lock the relatively stiff frame thereto andprevent a spreading apart of opposite sides of the opening and thusprevent release of the lens holding unit.

With reference to the drawings, designates generally the body of thegoggle which has a generally flat front wall 11 with walls 12 molded toextend rearwardly therefrom in a generally cup shaped manner and withthe edges 13 flared outwardly so as to be more comfortable in theirengagement with the face. This body is molded from some flexible softmaterial such as polyethylene.

Straps may be located in the holding means 14 for the straps for drawingthe body snugly into engagement with the face. In the front wall 11 ofthe body there is a window opening designated 15 (see FIGURE 3) aboutwhich there is a marginal edge which is generally rectangular in shapeand about which there is a marginal edge 16 which will be hereinafterreferred to.

The lens carrying unit is designated generally 18 and is a separate unitto be assembled with the body. This lens carrying unit is of a stifferor more rigid plastic material for its better functioning in thecarrying of the dark lens and its cover. This lens carrying unit isgenerally rectangular in shape as can be well seen in FIGURE 1, thisbeing formed by a generally U-shaped channel extending along its foursides and providing a window opening 19 in its center. The top channel20 as may be well seen in FIGURE 3 comprises a top wall 22, a back wall23 and a front wall 24 while the bottom U-channel 21 has a bottom wall25, a back wall 26 and a front wall 27. The end channel 28 of this unithas an end wall 29, a back wall 30 and a front wall 31 while theopposite end 32 does not have a channel formation but only a front wall33 which extends from wall 24 to wall 27 in substantially the same planeas these walls while leaving the complete absence of a wall comparableto the wall :29. Likewise a wall 34 similar to this wall 33 joins theback walls 23 and 26 to provide a rectangular structure similar to thatjust described. The lenses are positioned in this carrying unit throughthis open end 36 by means of a carrying frame 37 having a colored lens38 and protecting cover lens 39 assembled therewith on either side ofthe T-shaped framelike portion as seen at 40 (FIGURE 3) and providedwith a larger handle part 41 which may be grasped for manually insertingthe carrying frame into or from the channel shape lens carrying unit 18above described. Springs 42 along both upper and lower sides of the unitserve to hold the lenses snugly against the front walls 24, 27 as can bereadily observed in FIGURE 4.

From the rear walls of this unit assembly 23, 26, 30 and 34 thereextends a flange 43 which is of a shape and size to snugly fit throughthe opening 16 in the front wall 11 of the body.

A rectangular frame 45 of a size and shape to fit over the flange 43 ispositioned over this flange as seen in FIGURES 2 and 3. This frame 43 ispressed against the inner surface of the marginal edge and snaps overand beneath lugs 46 projecting outwardly from the flange 43. These lugsare positioned at such distance from the walls 23, 26, 30 and 34 thatthe frame is pressed snugly against the inner marginal edges of theopening 16 to draw the walls 23, 26, 30 and 34 against the frame andprovide a secure binding between the frame and the marginal edges of theopening.

It will be remembered that the body material is of a much softer pliablematerial, and when it is drawn snugly about the head, there is somepossibility of the material being drawn from between the frame and therear surface of the separable unit 18, and to prevent this I haveprovided .pins 50 which for convenience are one piece with the frame 45and which extend through holes 51 (FIG- URE 3) in the marginal edge ofthe body and holes 52 in the flange 43, and these pins are located atgenerally diametrically opposite points from the opening 16 and aresimilarly located in the frame 45 and in flange 43 so that oppositespreading of these marginal edge portions away from each other isprevented by these pins. The pin 50 will usually stay in positionwithout heading over. However, the pins may be headed over as shown byapplying heat and pressure after they are in place.

I claim:

1. In a goggle a flexible body portion having a window opening with amarginal edge about said opening provided with holes at opposite sidesof said opening, a separable lens carrying unit having a surfaceengaging in face to face contact with one side of said marginal edgewith a flange extending rearwardly therefrom through said windowopening, a frame embracing said flange and engaging in face to facecontact with the opposite side of said marginal 3. In a goggle as inclaim 1 wherein the pins on the edge, lugs on said flange extending oversaid frame to hold frame are integral therewith. it in position a ainstsaid marginal edge and pins on generally diametriially opposite portionsof said frame eX- References Cited In the file of thls patent tendingthrough said holes to prevent the marginal edge 5 UNITED STATES PATENTSportions about said holes from spreading. 2,648,843 Hirschmann 18 19532. In a goggle as in claim 1 wherein the lens carrying 2,895,138 n July1 195 unit is of a more rigid material than said body portion. 2,923,944Lindblom Feb 9 19 0

